Over the network can be hit or miss but the usb cable and the drivers from the AUR have yet to fail me
I have a ds640 (an usb scanner), and I've spent maybe 2 hours installing&reinstalling&removing drivers from the aur. Nothing worked. Installed Fedora just to see if things worked over there (as fedora is officially supported by brother) and things worked perfectly. Then i booted on my arch install arch once again, AND EVERYTHING WORKED. Alleluia. But I still don't know why, as I didn't touch nothing between last time i tried and now. Idk.
